CVE-2005-3713 in QuickTime
Summary
by MITRE
Heap-based buffer overflow in Apple Quicktime before 7.0.4 allows remote attackers to execute arbitrary code via a GIF image file with a crafted Netscape Navigator Application Extension Block that modifies the heap in the Picture Modifier block.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 01/19/2025
The vulnerability described in CVE-2005-3713 represents a critical heap-based buffer overflow flaw within Apple QuickTime software versions prior to 7.0.4. This security weakness specifically manifests when processing GIF image files that contain a maliciously crafted Netscape Navigator Application Extension Block. The vulnerability operates by manipulating the heap memory structure within the Picture Modifier block of the QuickTime processing pipeline, creating conditions where attacker-controlled data can overwrite adjacent memory locations. The flaw exploits the insufficient bounds checking mechanisms in the GIF parsing routine, particularly when handling the Application Extension Block that contains proprietary Netscape Navigator metadata. This type of vulnerability falls under the CWE-121 heap-based buffer overflow category, which is classified as a serious memory safety issue that can lead to arbitrary code execution. The attack vector is particularly concerning as it enables remote code execution through the processing of multimedia content, making it a significant threat to users who might encounter malicious GIF files in web browsers or email attachments.
The technical implementation of this vulnerability involves the manipulation of heap memory allocation patterns during GIF file parsing operations. When QuickTime encounters a GIF file containing the crafted Application Extension Block, the software's parsing logic fails to properly validate the length and content of the extension data. This validation failure allows the attacker to craft a payload that exceeds the allocated buffer space in the heap memory region designated for Picture Modifier block processing. The heap corruption occurs because the software does not perform adequate boundary checks before copying data into memory buffers, enabling the attacker to overwrite critical heap metadata or adjacent memory regions. The specific nature of the heap corruption enables attackers to control the execution flow of the application by overwriting return addresses or function pointers within the heap memory structure. This vulnerability directly maps to the ATT&CK technique T1203, which involves the exploitation of memory corruption vulnerabilities to execute arbitrary code, and demonstrates the classic pattern of heap-based buffer overflow exploitation through improper input validation.
The operational impact of CVE-2005-3713 extends beyond simple code execution to encompass potential system compromise and data theft capabilities. Remote attackers can leverage this vulnerability to gain unauthorized access to systems running vulnerable versions of QuickTime, particularly those that automatically process GIF images in web browsers or email clients. The vulnerability is particularly dangerous in environments where users frequently interact with web content or receive email attachments, as the exploitation can occur without any user interaction beyond viewing the malicious image. The heap-based nature of the overflow means that successful exploitation could lead to complete system compromise, allowing attackers to install malware, steal sensitive information, or establish persistent backdoors. Organizations using older versions of QuickTime software are particularly vulnerable as the flaw exists in the core multimedia processing libraries that handle various image formats. The impact is further amplified by the widespread use of QuickTime across both desktop and mobile platforms during this time period, making it an attractive target for cybercriminals seeking to exploit a large user base with a single vulnerability.
Mitigation strategies for CVE-2005-3713 primarily focus on immediate software updates and operational security measures. The most effective remediation involves upgrading to Apple QuickTime version 7.0.4 or later, which includes proper bounds checking and heap memory management improvements. System administrators should implement automated patch management processes to ensure all vulnerable systems receive updates promptly. Network security measures should include content filtering and sandboxing of multimedia file processing to prevent automatic execution of potentially malicious GIF files. Organizations should also consider implementing web application firewalls and intrusion detection systems that can identify and block suspicious GIF file patterns. The vulnerability highlights the importance of input validation and memory safety practices in multimedia processing libraries, which aligns with industry standards such as the CERT Secure Coding Standards for memory management. Additional defensive measures include disabling QuickTime plugin support in web browsers where possible, implementing strict file type validation, and conducting regular security assessments of multimedia handling components. The remediation process should also include user education about the risks of opening untrusted multimedia files, particularly those received via email or downloaded from untrusted websites, as this vulnerability can be exploited through social engineering tactics that encourage users to view malicious content.